4 o 



Cincinnati Society of Natural History. 



Growing on the old leaves in oak woods; usually solitary. 

 Preston, Ohio. Peridium about one centimeter in diameter. This 

 is a very pretty little puff ball which has a curious way of growing 

 here and there, one in a place, among the old leaves in the thick 

 woods. After maturity the shining peridium exhibits various tints of 

 yellow, coppery and bronze. It is much more delicate than L. 

 pitsilliiin and has a very different habit. 



11. Reticularia nitens. — ^Ethalium pulvinate, variable in 

 shape and size, inclosed by a thin fragile black and shining membrane. 

 Walls of the sporangia black and shining, fibrous thickened and grown 

 together, more persistent below, after maturity the membrane rapidly 

 disintegrating, leaving behind a loose irregular network of bands, 

 fibers and threads. Spores globose, minutely warted, brown, 9-10 

 mic. in diameter. 



Growing on old bark. Pasadena, California, Prof. A. J. 

 McClatcJiie. .-Ethalium 2 or 3 centimeters in extent. It differs from 

 Reticularia atra more particularly, in the spores being much smaller 

 and more coaisely warted. 



12. Hemiarcyria Montana. — Sporangium globose or obovoid, 

 olive-yellow, sessile or substipitate ; the wall minutely reticulate 

 within, externally smooth and shining, breaking up irregularly, the 

 upper part gradually falling away. Stipe very short or obsolete, 

 arising from a thin hypothallus. Capillitium of threads 6-8 mic. in 

 thickness, repeatedly branched and anastomosing to form a dense net- 

 work with many short free extremities next the wall, olive-yellow in 

 color ; the spiral ridges four or five, close or sometimes lax and often 

 with minute scattered spinules. Spores olive-yellow, globose, very 

 minutely warted 11-13 mic. in diameter. 



Growing gregariously on old wood, at an altitude of 7,400 feet 

 in the San Bernadino mountains of California; S. B. Parish. 

 Sporangium 1-1.5 mm. in height, the stipe usually shortened to a 

 mere point. An elegant species readily distinguished by its large 

 spores, belonging to the section Arcyrioides. 



13. Lycogala repletum. — ^Ethalium large, pulvinate, the 

 surface dull gray with minute brown spots, irregularly dehiscent. The 

 wall thick and firm, becoming rigid, a cellulose structure of brownish 

 vesicles. From the inner membrane proceed broad, flat expansions, 

 which traverse the interior, are often perforated and give out on all 



